2006-09-05 06:26:28 +02:00
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%%%----------------------------------------------------------------------
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%%% File : ejabberd_socket.erl
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%%% Author : Alexey Shchepin <alexey@process-one.net>
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%%% Purpose : Socket with zlib and TLS support library
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2007-12-24 12:41:41 +01:00
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%%% Created : 23 Aug 2006 by Alexey Shchepin <alexey@process-one.net>
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%%%
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%%%
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2017-01-02 21:41:53 +01:00
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%%% ejabberd, Copyright (C) 2002-2017 ProcessOne
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2007-12-24 12:41:41 +01:00
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%%%
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%%% This program is free software; you can redistribute it and/or
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%%% modify it under the terms of the GNU General Public License as
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%%% published by the Free Software Foundation; either version 2 of the
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%%% License, or (at your option) any later version.
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%%%
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%%% This program is distributed in the hope that it will be useful,
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%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
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%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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%%% General Public License for more details.
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2009-01-12 15:44:42 +01:00
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%%%
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2014-02-22 11:27:40 +01:00
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%%% You should have received a copy of the GNU General Public License along
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%%% with this program; if not, write to the Free Software Foundation, Inc.,
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%%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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2007-12-24 12:41:41 +01:00
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%%%
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2006-09-05 06:26:28 +02:00
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%%%----------------------------------------------------------------------
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-module(ejabberd_socket).
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2013-03-14 10:33:02 +01:00
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2006-09-05 06:26:28 +02:00
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-author('alexey@process-one.net').
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%% API
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-export([start/4,
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connect/3,
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2008-12-26 12:45:08 +01:00
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connect/4,
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2016-10-22 12:01:45 +02:00
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connect/5,
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2006-09-05 06:26:28 +02:00
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starttls/2,
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compress/1,
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2006-10-01 03:53:37 +02:00
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compress/2,
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2006-09-05 06:26:28 +02:00
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reset_stream/1,
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2017-01-09 15:02:17 +01:00
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send_element/2,
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send_header/2,
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send_trailer/1,
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2006-09-05 06:26:28 +02:00
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send/2,
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2009-08-31 20:37:52 +02:00
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send_xml/2,
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2006-09-05 06:26:28 +02:00
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change_shaper/2,
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2007-04-12 08:08:32 +02:00
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monitor/1,
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2006-09-05 06:26:28 +02:00
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get_sockmod/1,
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2016-07-18 14:01:32 +02:00
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get_transport/1,
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2017-03-07 12:20:50 +01:00
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get_peer_certificate/2,
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2006-09-05 06:36:01 +02:00
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get_verify_result/1,
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2006-10-19 06:46:24 +02:00
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close/1,
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2016-12-28 07:47:11 +01:00
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pp/1,
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2006-10-19 06:46:24 +02:00
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sockname/1, peername/1]).
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2006-09-05 06:26:28 +02:00
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2009-10-19 11:36:23 +02:00
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-include("ejabberd.hrl").
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2016-12-11 13:03:37 +01:00
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-include("xmpp.hrl").
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2013-04-08 11:12:54 +02:00
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-include("logger.hrl").
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2013-03-14 10:33:02 +01:00
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2017-01-02 15:53:25 +01:00
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-type sockmod() :: ejabberd_bosh |
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2015-03-12 13:14:30 +01:00
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ejabberd_http_ws |
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2016-02-03 16:13:16 +01:00
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gen_tcp | fast_tls | ezlib.
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2013-03-14 10:33:02 +01:00
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-type receiver() :: pid () | atom().
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-type socket() :: pid() | inet:socket() |
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2016-02-03 16:13:16 +01:00
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fast_tls:tls_socket() |
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2016-11-22 13:17:05 +01:00
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ezlib:zlib_socket() |
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2017-02-18 07:36:27 +01:00
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ejabberd_bosh:bosh_socket() |
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ejabberd_http_ws:ws_socket().
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2013-03-14 10:33:02 +01:00
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-record(socket_state, {sockmod = gen_tcp :: sockmod(),
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socket = self() :: socket(),
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receiver = self() :: receiver()}).
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-type socket_state() :: #socket_state{}.
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2009-10-19 11:36:23 +02:00
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2016-08-09 09:56:32 +02:00
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-export_type([socket/0, socket_state/0, sockmod/0]).
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2013-03-14 10:33:02 +01:00
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2016-12-28 07:47:11 +01:00
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-callback start({module(), socket_state()},
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[proplists:property()]) -> {ok, pid()} | {error, term()} | ignore.
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-callback start_link({module(), socket_state()},
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[proplists:property()]) -> {ok, pid()} | {error, term()} | ignore.
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-callback socket_type() -> xml_stream | independent | raw.
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2006-09-05 06:26:28 +02:00
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2017-01-09 15:02:17 +01:00
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-define(is_http_socket(S),
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(S#socket_state.sockmod == ejabberd_bosh orelse
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S#socket_state.sockmod == ejabberd_http_ws)).
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2006-09-05 06:26:28 +02:00
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%%====================================================================
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%% API
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%%====================================================================
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2017-02-18 07:36:27 +01:00
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-spec start(atom(), sockmod(), socket(), [proplists:property()])
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2017-01-09 15:02:17 +01:00
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-> {ok, pid() | independent} | {error, inet:posix() | any()}.
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2006-09-05 06:26:28 +02:00
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start(Module, SockMod, Socket, Opts) ->
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2006-09-25 05:51:11 +02:00
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case Module:socket_type() of
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2017-01-09 15:02:17 +01:00
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independent -> {ok, independent};
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2013-03-14 10:33:02 +01:00
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xml_stream ->
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2017-01-09 15:02:17 +01:00
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MaxStanzaSize = proplists:get_value(max_stanza_size, Opts, infinity),
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{ReceiverMod, Receiver, RecRef} =
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try SockMod:custom_receiver(Socket) of
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2013-03-14 10:33:02 +01:00
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{receiver, RecMod, RecPid} ->
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2017-01-09 15:02:17 +01:00
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{RecMod, RecPid, RecMod}
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catch _:_ ->
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RecPid = ejabberd_receiver:start(
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Socket, SockMod, none, MaxStanzaSize),
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{ejabberd_receiver, RecPid, RecPid}
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2013-03-14 10:33:02 +01:00
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end,
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SocketData = #socket_state{sockmod = SockMod,
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socket = Socket, receiver = RecRef},
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case Module:start({?MODULE, SocketData}, Opts) of
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{ok, Pid} ->
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case SockMod:controlling_process(Socket, Receiver) of
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2017-01-09 15:02:17 +01:00
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ok ->
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ReceiverMod:become_controller(Receiver, Pid),
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{ok, Receiver};
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Err ->
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SockMod:close(Socket),
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Err
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end;
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Err ->
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2013-03-14 10:33:02 +01:00
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SockMod:close(Socket),
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case ReceiverMod of
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ejabberd_receiver -> ReceiverMod:close(Receiver);
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_ -> ok
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2017-01-09 15:02:17 +01:00
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end,
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Err
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2013-03-14 10:33:02 +01:00
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end;
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raw ->
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case Module:start({SockMod, Socket}, Opts) of
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{ok, Pid} ->
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case SockMod:controlling_process(Socket, Pid) of
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2017-01-09 15:02:17 +01:00
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ok ->
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{ok, Pid};
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{error, _} = Err ->
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SockMod:close(Socket),
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Err
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2013-03-14 10:33:02 +01:00
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end;
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2017-01-09 15:02:17 +01:00
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Err ->
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SockMod:close(Socket),
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Err
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2013-03-14 10:33:02 +01:00
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end
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2006-09-25 05:51:11 +02:00
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end.
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2006-09-05 06:26:28 +02:00
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connect(Addr, Port, Opts) ->
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2016-10-22 12:01:45 +02:00
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connect(Addr, Port, Opts, infinity, self()).
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2008-12-26 12:45:08 +01:00
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connect(Addr, Port, Opts, Timeout) ->
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2016-10-22 12:01:45 +02:00
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connect(Addr, Port, Opts, Timeout, self()).
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connect(Addr, Port, Opts, Timeout, Owner) ->
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2008-12-26 12:45:08 +01:00
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case gen_tcp:connect(Addr, Port, Opts, Timeout) of
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2013-03-14 10:33:02 +01:00
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{ok, Socket} ->
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Receiver = ejabberd_receiver:start(Socket, gen_tcp,
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none),
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SocketData = #socket_state{sockmod = gen_tcp,
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socket = Socket, receiver = Receiver},
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case gen_tcp:controlling_process(Socket, Receiver) of
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ok ->
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2016-10-22 12:01:45 +02:00
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ejabberd_receiver:become_controller(Receiver, Owner),
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2013-03-14 10:33:02 +01:00
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{ok, SocketData};
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{error, _Reason} = Error -> gen_tcp:close(Socket), Error
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end;
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{error, _Reason} = Error -> Error
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2006-09-05 06:26:28 +02:00
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end.
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2017-01-09 15:02:17 +01:00
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starttls(#socket_state{socket = Socket,
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receiver = Receiver} = SocketData, TLSOpts) ->
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case fast_tls:tcp_to_tls(Socket, TLSOpts) of
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2016-12-11 13:03:37 +01:00
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{ok, TLSSocket} ->
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2017-01-09 15:02:17 +01:00
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case ejabberd_receiver:starttls(Receiver, TLSSocket) of
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ok ->
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{ok, SocketData#socket_state{socket = TLSSocket,
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sockmod = fast_tls}};
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{error, _} = Err ->
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Err
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end;
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{error, _} = Err ->
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2016-12-11 13:03:37 +01:00
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Err
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end.
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2006-10-01 03:53:37 +02:00
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2013-06-17 15:33:25 +02:00
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compress(SocketData) -> compress(SocketData, undefined).
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2006-09-05 06:26:28 +02:00
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2006-10-01 03:53:37 +02:00
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compress(SocketData, Data) ->
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2017-01-09 15:02:17 +01:00
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case ejabberd_receiver:compress(SocketData#socket_state.receiver, Data) of
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{ok, ZlibSocket} ->
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{ok, SocketData#socket_state{socket = ZlibSocket, sockmod = ezlib}};
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Err ->
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?ERROR_MSG("compress failed: ~p", [Err]),
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Err
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end.
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2006-10-01 03:53:37 +02:00
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2013-03-14 10:33:02 +01:00
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reset_stream(SocketData)
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when is_pid(SocketData#socket_state.receiver) ->
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2009-08-31 20:37:52 +02:00
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ejabberd_receiver:reset_stream(SocketData#socket_state.receiver);
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2013-03-14 10:33:02 +01:00
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reset_stream(SocketData)
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when is_atom(SocketData#socket_state.receiver) ->
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(SocketData#socket_state.receiver):reset_stream(SocketData#socket_state.socket).
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2006-09-05 06:26:28 +02:00
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2017-01-09 15:02:17 +01:00
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-spec send_element(socket_state(), fxml:xmlel()) -> ok | {error, inet:posix()}.
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send_element(SocketData, El) when ?is_http_socket(SocketData) ->
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send_xml(SocketData, {xmlstreamelement, El});
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send_element(SocketData, El) ->
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send(SocketData, fxml:element_to_binary(El)).
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-spec send_header(socket_state(), fxml:xmlel()) -> ok | {error, inet:posix()}.
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send_header(SocketData, El) when ?is_http_socket(SocketData) ->
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send_xml(SocketData, {xmlstreamstart, El#xmlel.name, El#xmlel.attrs});
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send_header(SocketData, El) ->
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send(SocketData, fxml:element_to_header(El)).
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2006-09-05 06:26:28 +02:00
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2017-01-09 15:02:17 +01:00
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-spec send_trailer(socket_state()) -> ok | {error, inet:posix()}.
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send_trailer(SocketData) when ?is_http_socket(SocketData) ->
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send_xml(SocketData, {xmlstreamend, <<"stream:stream">>});
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send_trailer(SocketData) ->
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send(SocketData, <<"</stream:stream>">>).
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2017-03-12 06:55:54 +01:00
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-spec send(socket_state(), iodata()) -> ok | {error, closed | inet:posix()}.
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2017-01-09 15:02:17 +01:00
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send(#socket_state{sockmod = SockMod, socket = Socket} = SocketData, Data) ->
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?DEBUG("(~s) Send XML on stream = ~p", [pp(SocketData), Data]),
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2017-03-12 06:55:54 +01:00
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try SockMod:send(Socket, Data) of
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{error, einval} -> {error, closed};
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Result -> Result
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2017-01-09 15:02:17 +01:00
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catch _:badarg ->
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%% Some modules throw badarg exceptions on closed sockets
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%% TODO: their code should be improved
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2017-03-12 06:55:54 +01:00
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{error, closed}
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2009-10-19 11:36:23 +02:00
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end.
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2006-09-05 06:26:28 +02:00
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2017-01-09 15:02:17 +01:00
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-spec send_xml(socket_state(),
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{xmlstreamelement, fxml:xmlel()} |
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{xmlstreamstart, binary(), [{binary(), binary()}]} |
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{xmlstreamend, binary()} |
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{xmlstreamraw, iodata()}) -> term().
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send_xml(SocketData, El) ->
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(SocketData#socket_state.sockmod):send_xml(SocketData#socket_state.socket, El).
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2006-09-05 06:26:28 +02:00
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2009-08-31 20:37:52 +02:00
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change_shaper(SocketData, Shaper)
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2013-03-14 10:33:02 +01:00
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when is_pid(SocketData#socket_state.receiver) ->
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ejabberd_receiver:change_shaper(SocketData#socket_state.receiver,
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Shaper);
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2009-08-31 20:37:52 +02:00
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change_shaper(SocketData, Shaper)
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2013-03-14 10:33:02 +01:00
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when is_atom(SocketData#socket_state.receiver) ->
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(SocketData#socket_state.receiver):change_shaper(SocketData#socket_state.socket,
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Shaper).
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monitor(SocketData)
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when is_pid(SocketData#socket_state.receiver) ->
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erlang:monitor(process,
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SocketData#socket_state.receiver);
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monitor(SocketData)
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when is_atom(SocketData#socket_state.receiver) ->
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(SocketData#socket_state.receiver):monitor(SocketData#socket_state.socket).
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2007-04-12 08:08:32 +02:00
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2006-09-05 06:26:28 +02:00
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get_sockmod(SocketData) ->
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SocketData#socket_state.sockmod.
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2016-07-18 14:01:32 +02:00
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get_transport(#socket_state{sockmod = SockMod,
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socket = Socket}) ->
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case SockMod of
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gen_tcp -> tcp;
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fast_tls -> tls;
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ezlib ->
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case ezlib:get_sockmod(Socket) of
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2016-12-29 15:18:42 +01:00
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gen_tcp -> tcp_zlib;
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fast_tls -> tls_zlib
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2016-07-18 14:01:32 +02:00
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end;
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2016-11-22 13:17:05 +01:00
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ejabberd_bosh -> http_bind;
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2016-07-18 14:01:32 +02:00
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ejabberd_http_ws -> websocket
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end.
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2017-03-07 12:20:50 +01:00
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get_peer_certificate(SocketData, Type) ->
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fast_tls:get_peer_certificate(SocketData#socket_state.socket, Type).
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2006-09-05 06:36:01 +02:00
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get_verify_result(SocketData) ->
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2016-02-03 16:13:16 +01:00
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fast_tls:get_verify_result(SocketData#socket_state.socket).
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2006-09-05 06:36:01 +02:00
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|
|
2006-09-05 06:26:28 +02:00
|
|
|
close(SocketData) ->
|
|
|
|
ejabberd_receiver:close(SocketData#socket_state.receiver).
|
|
|
|
|
2013-03-14 10:33:02 +01:00
|
|
|
sockname(#socket_state{sockmod = SockMod,
|
|
|
|
socket = Socket}) ->
|
2006-10-19 06:46:24 +02:00
|
|
|
case SockMod of
|
2013-03-14 10:33:02 +01:00
|
|
|
gen_tcp -> inet:sockname(Socket);
|
|
|
|
_ -> SockMod:sockname(Socket)
|
2006-10-19 06:46:24 +02:00
|
|
|
end.
|
|
|
|
|
2013-03-14 10:33:02 +01:00
|
|
|
peername(#socket_state{sockmod = SockMod,
|
|
|
|
socket = Socket}) ->
|
2006-10-19 06:46:24 +02:00
|
|
|
case SockMod of
|
2013-03-14 10:33:02 +01:00
|
|
|
gen_tcp -> inet:peername(Socket);
|
|
|
|
_ -> SockMod:peername(Socket)
|
2006-10-19 06:46:24 +02:00
|
|
|
end.
|
2016-12-28 07:47:11 +01:00
|
|
|
|
|
|
|
pp(#socket_state{receiver = Receiver} = State) ->
|
|
|
|
Transport = get_transport(State),
|
|
|
|
io_lib:format("~s|~w", [Transport, Receiver]).
|